321 Stainless Steel Round Bar

321 Stainless steel has excellent high-temperature stress rupture (Stress rupture) performance and high characteristics.

321 Stainless Steel round bar

321 Stainless Steel Rods Chemical Composition

Austenitic stainless steel is equivalent to domestic 1cr18ni9ti

U.S. brands: 321, S32100, TP321

Chemical Composition(%)

C ≤ 0.08

Si ≤ 1.00

Mn ≤ 2.00

S ≤ 0.030

P ≤ 0.045

Cr: 17.00～19.00

Ni：9.00～12.00

Ti：≥5×C%

Mechanical Properties

Tensile Strength σb (MPa) ≥ 520

Conditional Yield Strength σ0.2 (MPa) ≥ 205

Elongation Rateδ5 (%) ≥ 40

Shrinkage Rate of Section ψ(%) ≥ 50

Hardness: ≤187HB; ≤90HRB; ≤200HV

321 Stainless Steel Performance Parameters

321 stainless steel in which ti as a stabilizing element exists, but it is also a hot and strong steel, in the high-temperature aspect than 316L is much better. 321 stainless steel in different concentrations, different temperatures of organic acids and inorganic acids, especially in the oxidizing medium with good wear and corrosion resistance, used to manufacture wear-resistant acid containers and wear-resistant equipment lining and conveying pipelines.

321 Stainless steel is NI-CR-MO type austenitic stainless steel, its performance and 304 very similar.

However, due to the addition of metal titanium, it has a better resistance to intergranular corrosion and high temperature strength due to the addition of titanium, so that it effectively control the formation of chromium carbide.

321 Stainless Steel Bar Weight Calculation Formula

Weight (kg) = diameter (mm) * Diameter (mm) * Length (m) * 0.00623

Application

Used in the field of chemical, coal and petroleum industries, which require high resistance to grain boundary corrosion, the parts of heat-resisting parts and heat treatment have difficulty, such as:

1. Oil exhaust gas Combustion pipeline

2. Engine exhaust Pipe

3. Boiler housings, heat exchangers, heating furnace Parts

4. Silencer Parts for diesel engines

5. Boiler pressure Vessel

6. Chemical Transport Vehicle

7. Telescopic connectors

8. Spiral welded pipe for burning furnace piping and drying machine